November 28, 2015 (Sat) 14:00--15:00 November 29, 2015 (Sun) 11:20--12:20 Graduate School of Mathematical Sciences The University of Tokyo, Tokyo, Japan |
Abstract
Kodaira fibred surfaces are a remarkable example of projective
classifying spaces,
and there are still many intriguing open questions concerning them,
especially the slope question.
The topological characterization of Kodaira fibrations is emblematic
of the use of topological methods
in the study of moduli spaces of surfaces and higher dimensional
complex algebraic varieties,
and their compactifications.
Our tour through algebraic surfaces and their moduli (with results
valid also for higher dimensional varieties) shall
deal with fibrations, questions on monodromy and factorizations in the
mapping class group,
old and new results on Variation of Hodge Structures, Galois
coverings, deformations and rigid varieties
(there are rigid Kodaira fibrations).
These questions lead to interesting algebraic surfaces, for instance
surfaces isogenous to a product
with automorphisms acting trivially on cohomology, hypersurfaces in
Bagnera-de Franchis
varieties, Inoue-type surfaces, remarkable surfaces constructed from
VHS.